<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>switch语句输出</title>
<script language="javascript">
var now=new Date();
var day=now.getDay();
switch(day){
case 1:
	week="星期一";
	break;
case 2: 
	week="星期二";
	break;
case 3:
	week="星期三";
	break;
case 4:
	week="星期四";
	break;
case 5:
	week="星期五";
	break;
case 6:
	week="星期六";
	break;
case 7:
	week="星期天";
	break;
}
alert("今天是"+week);
</script>
</head>
<body>

</body>
</html>